these 6 derivations will be built:
  /nix/store/9b8fqb9gqirbwjbpa65zk2qvld0azln8-iets-0.1.0.drv
  /nix/store/1m9ydgf2kjzjcfizl3fg3rvln66ivc2d-closure-info.drv
  /nix/store/q158z87r3fpy7ksd85kzgsawk4rs5g6w-test-script.drv
  /nix/store/4fgcrql43d5l2r77yg9rdflrg0jm40sf-driverConfiguration.json.drv
  /nix/store/4m5qmwx21hzd2bvn78wn8kd2qnbsbnp2-nixos-test-driver-iets-plumbing-e2e.drv
  /nix/store/1lwggxdm8mg4aj3znpra525ib5bnbqhs-container-test-run-iets-plumbing-e2e.drv